The 12. Armee was again reformed on 10 April 1945 from the staff of Heeresgruppe Nord. During the period 4-8 May 1945, the 12. Armee, along with the remnants of the 9. Armee, crossed to the west bank of the Elbe and surrendered to the U.S. Ninth Army.

Notable members

Rudolf-Christoph Freiherr von Gersdorff (Active in the resistance against Hitler and also the one who in 1943 discovered the mass graves from the Soviet massacre of Polish officers in the Katyn forest)Alexander Löhr (Generalmajor in the Austrian Bundesheer before the Anschluss. He was executed for war crimes in Yugoslavia 1947)